1. He has a lot of interesting looks.

Question

2. He has a lot of interested looks.

(Which one is correct? Do both have a different meanings?)

3. What animal do you have?
- I have a turtle.

4. What kind of animal do you have?
- I have a parrot.

5. What animals do they like?
-They like cute animals such as dogs and cats.

6. What kinds of animals do you keep?
- I keep two lizards.

(Are the answers and questions grammatical?)

Answer 1

1 is correct. 2 is incorrect; and no, they don't mean the same thing.

3 is correct.

4 is correct if you said "bird" instead of "parrot" -- the question asks what kind of animal, not what the specific animal is!!

5 is correct.

6 - see #4.